The data are a processed and interpolated P-Cable 3D seismic data cube. The data were collected during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc offshore southern Italy (map under further details). Seismic source was a Generator-Injector airgun fired in harmonic GI mode with generator and injector volume of 105 cubic inches. The source was towed at a nominal depth of 2 m beneath the sea surface. We deployed a P-Cable system made from 12 parallel streamers (each 12. 5 m in length). Details on the towed geometry are given in Figure 30 of the cruise report (Riedel et al., 2017). The P-Cable data were acquired over the course of 6 days during POS515 starting from 13:45 on July 5, 2017 until 12:06 on July11, 2017 (all CET). Processing included: 3D geometry application, trace editing, static time corrections, band-pass filtering, sorting to common midpoint gathers, normal moveout correction (1520 m/s velocity ), and stacking. The stacked 3D cube was then interpolated to fill any empty bins. Afterwards, Stolt time migration (1550 m/s) was performed, first inline, then crossline direction. The dataset has a horizontal resolution of 3.125 m (bin size) and a dominant frequency of ~100 Hz.

The data are provided in SEG-Y format.3D P-Cable corner points:inline: 3606 crossline: 3200 Lat: 38.15668 Lon: 17.63030inline: 3606 crossline: 5850 Lat: 38.23114 Lon: 17.63577inline: 5117 crossline: 5850 Lat: 38.23359 Lon: 17.58194Number of inlines: 3606 - 5117 (total 1512)Number of crosslines: 3200 - 5850 (total 2651)The sampling rate: 0.001 sTime extracted: 2.34 s - 3.54 s (1201 samples total)Lagtime: (580 ms): 109-110The following header locations can be used for accessing coordinates:Bin-size: 3.125 mX-bin coordinate: byte 81-84Y-bin coordinate: byte 85-88Inline-number: 17-20Crossline-number: 21-24